I have had my turtle for about a month now and he's been fine, always has. But recently I noticed he hasn't been eating much or at all. He looks for food but when he goes to eat it he spits it out(I've been feeding him pellets and baby dried up shrimp). He always ate it before without a problem but I did notice the other day it looks like he has a white looking possible cut right at the end of his mouth. Is this anything serious or just a simple cut? I did have a fake tree in there with him which I recently took out after noticing, could this have cut him?

I think I know what you mean. There is a thin layer of skin that stretches when they open their mouths wide. I don't know if there is anything you can do about it though... it would be the first instance of this type of situation (on this site) that I'm aware of.

It does look like a cut from the results of the plant or tree mentioned. You will want to monitor it encase of a later infection. Can I recommend trying to offer frozen / thawed food so that it is soft for your turtle child to consume to prevent irritation within its mouth? I sometimes combine omega one to a bit of blood worms to entice feeding.